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Finding the Fourth Proportional to 496,811.40, 745,257.60 and 212,504.10

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Solution

The fourth proportional to 496,811.40, 745,257.60 and 212,504.10 is: 318,773.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,811.40 : 745,257.60 = 212,504.10 : x
  2. Step 2: Convert to fraction form
    496,811.40/745,257.60 = 212,504.10/x
  3. Step 3: Cross multiply
    496,811.40x = 745,257.60 × 212,504.10
  4. Step 4: Simplify right side
    496,811.40x = 158,370,295,556.16
  5. Step 5: Solve for x
    x = 158,370,295,556.16/496,811.40
  6. Step 6: Final answer
    x = 318,773.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.